Seiko Cal. 5661 - 591

The Seiko 5661-591 represents an important milestone in Seiko's 1991 lineup. Powered by the 5661 caliber with 22j jewels beating at 28,800 bph, it delivers a 43 hours power reserve. [seikata-wm-10ef57aa6fb9]

Also known as: Rally

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

43mm

Case Thickness

10.8mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

170m

Dial Color

Blue Sunburst

Jewels

22j

Frequency

28,800 bph

Power Reserve

43 hours

Year

1991

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